Great Planes Ryan STA Electric Kit - GPMA0165 - Manual (Page 11)

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9. We have simplified the task of cutting hinge slots with
the introduction of the Great Planes Slot Machine ™ . This
simple electric tool cuts a perfect width slot for use with
CA hinges.
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10. To cut the hinge slot, first locate the center line of the
LE and TE edges using the Great Planes Precision Hinge
Marking Tool (GPMR4005). Then place the blades of the
Slot Machine onto the wood where you want the slot. Lightly
press the teeth into the wood. When you are satisfied with
the location, press the button on the handle and the blades
will cut easily into the balsa wood.
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11. Cut the 1/2" x 1" [12.7mm x 25.4mm] hinges for the
elevator and rudder from the supplied 2" x 9" [50.8mm x
228.6mm] hinge material, then snip off the corners as
shown on the fuselage plan. Temporarily join the elevators
to the stab and the rudder to the fin with the hinges,
adjusting any hinge slots if necessary so they all align. Do
not glue in the hinges until you are instructed to do so
after the airplane is covered.
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1. Refer to the Expert Tip that follows and shape the
leading edge of the elevators and rudder to a “V” as shown
on the plan.
A. Place the leading edge of one of the elevators on your
work surface and use your pen to mark a “bevel to” line on
both sides, about 3/32" [2.4mm] high.
Note: You will probably have to adjust the height of the
elevator with card stock so your “bevel to” line is not
too high.
HOW TO BEVEL THE LEADING EDGES
Finish the Tail Surfaces
Cut the hinge slots in the elevators, stabilizer, fin and
rudder using a Hobby Knife with a #11 blade. Begin by
carefully cutting a very shallow slit at the hinge location to
accurately establish the hinge slot. Make three or four
more cuts, going a little deeper each time. As you cut,
slide the knife from side to side until the slot has reached
the proper depth and width for the hinge.
AND #11 BLADE
WITH HOBBY KNIFE
CUT HINGE SLOT
IF YOU DO NOT HAVE A SLOT MACHINE
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